cve 2025 37798

About this tag
CVE-2025-37798 is a Linux kernel vulnerability in the networking scheduler's traffic control (qdisc) subsystem. The fix removes a historical queue length check before calling qdisc_tree_reduce_backlog() after making qlen_notify() callbacks idempotent. This change affects system administrators and cloud operators running affected kernels. The vulnerability is relevant to WindowsForum.com readers who manage Linux-based systems in mixed environments or virtualized Windows-on-Linux setups. Discussions cover the technical details of the patch, its operational impact, and mitigation strategies for enterprise IT and security professionals.

  1. CVE-2025-37798: Linux traffic control qdisc idempotent notifications fix

    The Linux kernel networking scheduler received a surgical but consequential change that was recorded as CVE‑2025‑37798: maintainers removed the historical check of sch->q.qlen (the qdisc’s queue length) before calling qdisc_tree_reduce_backlog(), after first making all qlen_notify() callbacks...
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